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US3844628A - Anti-friction ball bearing assembly - Google Patents

Anti-friction ball bearing assembly Download PDF

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Publication number
US3844628A
US3844628A US00334707A US33470773A US3844628A US 3844628 A US3844628 A US 3844628A US 00334707 A US00334707 A US 00334707A US 33470773 A US33470773 A US 33470773A US 3844628 A US3844628 A US 3844628A
Authority
US
United States
Prior art keywords
bearing assembly
ball bearing
friction ball
balls
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00334707A
Other languages
English (en)
Inventor
A Mccloskey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INCOM-HEIM Corp
NOOK INDUSTRIES Inc
Incom International Inc
Boeing North American Inc
Original Assignee
Rockwell International Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rockwell International Corp filed Critical Rockwell International Corp
Priority to US00334707A priority Critical patent/US3844628A/en
Priority to CA188,935A priority patent/CA1038434A/en
Priority to AU64334/74A priority patent/AU6433474A/en
Priority to NL7400923A priority patent/NL7400923A/xx
Priority to DE2403676A priority patent/DE2403676A1/de
Priority to FR7404687A priority patent/FR2219329B3/fr
Priority to CH197674A priority patent/CH574570A5/xx
Priority to BE140930A priority patent/BE811053A/xx
Priority to AT127874A priority patent/AT328801B/de
Priority to BR741201A priority patent/BR7401201D0/pt
Application granted granted Critical
Publication of US3844628A publication Critical patent/US3844628A/en
Assigned to INCOM INTERNATIONAL, INC. reassignment INCOM INTERNATIONAL, INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: INCOM-HEIM CORPORATION
Assigned to INCOM-HEIM CORPORATION reassignment INCOM-HEIM CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE SEPT. 28, 1978. Assignors: HEIM UNIVERSAL CORPORATION, THE
Assigned to IMO DELAVAL INC., A CORP. OF DE reassignment IMO DELAVAL INC., A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). Assignors: IMO CORPORATION
Assigned to NOOK INDUSTRIES, INC. reassignment NOOK INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: IMO INDUSTRIES, INC. A CORPORATION OF DELAWARE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/068—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track
    • F16C29/0683—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque
    • F16C29/0685—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls
    • F16C29/069—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls whereby discrete load bearing elements, e.g. discrete load bearing plates or discrete rods, are provided in a retainer and form the load bearing tracks

Definitions

  • ABSTRACT An anti-friction ball bearing assembly adapted for mounting on a shaft comprising an outer sleeve and an inner sleeve concentrically fitting within said outer sleeve, the inner sleeve having a number of tracks dcfining paths for the circulation of balls between said sleeves and said shaft during movement between said shaft and said bearing assembly, the inner surface of the outer sleeve being provided with a number of axially extending channels adapted to receive a plurality of insertable members each having a raceway surface thereon providing bearing support for said balls during the portion of their circulation path in which said balls are in contact with said shaft and said raceway surfaces.
  • the invention relates to an anti-friction ball bearing assembly adapted for mounting on a shaft comprising an outer sleeve and an inner sleeve concentrically fitting within said outer sleeve, the inner sleeve having a number of tracks defining paths for the circulation of balls between said sleeves and said shaft during movement between said shaft and said bearing assembly, the inner surface of the outer sleeve being provided with a number of axially extending channels adapted to receive a plurality of insertable members each having a raceway surface thereon providing bearing support for said balls during the portion of their circulation path in which said balls are in contact with said shaft and said raceway surfaces.
  • the prior art is replete with many different types of recirculating ball bearing assemblies.
  • the prior art forms of bearings are subject to high rates of wear between their respective parts. Additionally, they are intricate in design and expensive to manufacture. Premature wear may for example occur when the various bearing assembly components are manufactured slightly out of tolerance. This lack of tolerance will cause the recirculating balls to bind during operational loading. This binding will cause amount other things scoring of the balls and shaft which introduces further alignment inaccuracies and ultimate failure of the bearing assembly and possibly its associated shaft.
  • an anti-friction ball bearing assembly adapted for mounting on a shaft comprising an outer sleeve and an inner sleeve concentrically fitting within said outer sleeve, the inner sleeve having a number of tracks defining paths for the circulation of balls between said sleeves and said shaft during movement between said shaft and said bearing assembly, the inner surface of the outer sleeve being provided with a number of axially extending channels adapted to receive a plurality of insertable members each having a raceway surface thereon providing bearing support for said balls during the portion of their circulation path in which said balls are in contact with said shaft and said raceway surfaces.
  • Another object of the present invention is to provide an anti-friction ball bearing assembly in which the race- .way surfaces may be provided on stamped and machine metal parts which are inserted into channels provided in the inner surface of the outer sleeve.
  • FIG. 1 is a side elevation view, partially cut away, of a ball bearing assembly embodying the invention mounted on a shaft;
  • FIG. 2 is an end section taken along the line 22 of FIG. 1;
  • FIG. 3 is an exploded perspective view of the assembly of FIG. 1 with the anti-friction balls removed;
  • FIG. 4 is an enlarged side section of the outer sleeve of the bearing assembly of FIG. 1 showing inner surface details thereof;
  • FIG. 5 is an enlarged end view of the outer sleeve of FIG. 4.
  • the improved anti-friction ball bearing assembly of the invention includes antifriction bearing balls 10, and outer sleeve 12 and an inner sleeve 14 serving as a ball bearing retainer.
  • Retaining means such as snap rings 16 are provided at each end of the assembly to anchor the inner and outer sleeves axially relative to each other to form a unit.
  • Outer sleeve 12 may be in the form of a cylinder having a machines outer surface which is uninterrupted except for two annular grooves 18.
  • the annular grooves 18 may be formed adjacent the ends of the outer sleeve which receive suitable retaining means, such as snap rings (not shown), to anchor the ball bearing assembly to a bushing housing or other like machine element or apparatus.
  • Outer sleeve 12 has an inner surface formed with a plurality of axially extending grooves 20 equidistantly spaced about the inner surface circumference.
  • the axially extending channels 22 are adapted to receive insertable members 23.
  • the insertable members 23 may be in the form of an inverted W-like member.
  • the insertable member 23 is provided with raceway surfaces 25 which provide the balls with a bearing surface while they are in contact with outer surface of the shaft 38 which will be later described as the bearing balls active position.
  • a recessed concave end surface 24 may be provided on the insertable member 23 adjacent each end of raceway surfaces 25.
  • the concave end surfaces 24 are recessed with respect to raceway surfaces 22 on the insertable member 23.
  • a smooth transition is provided between surfaces 24 and 25 by means of tapered reliefs 26.
  • the degree of taper will vary according to among other things the degree of clearance necessary to allow the balls to track into the grooves 20.
  • An annular groove 28 is provided at each end of the inner surface of the outer sleeve 12 to serve as a seat for a retaining ring 16 or other suitable retaining means.
  • Rings 16 serve to prevent axial movement of the inner sleeve with respect to the outer sleeve. They may be dished or snap rings and may be formed of metal, plastic, or other suitable material. These rings may be positioned in grooves 28 to secure the inner sleeve 14 within the outer sleeve 12, and may serve the dual purpose of also securing the insertable members 23 within the axially extending channels 22.
  • a retaining flange or rib could be employed which may be integral with the inner sleeve at one end thereof (not shown). This rib could also be used to secure the insertable members 23 in place within the channels 22. It is also possible when using a resilient plastic material for the inner sleeve to have integrally formed thereon a retaining flange or rib at each end of the inner sleeve. A single plastic rib extension (also not shown) could also be formed on the inner sleeve 14 and engage a locating recess (not shown) formed internally in the inner surface of the outer sleeve at a position not interferring with the circulation of the ball bearings.
  • FIG. 3 there is shown an inner sleeve 14 having a plurality of plane portions 30 which define a polyhedron.
  • a plurality of balls 10 circulate along tracks formed in plane portions 30.
  • Each track is comprised of an inner member groove 32 and a slot 34.
  • the ends of each inner member groove 32 are curved and are interconnected by similarly curved ends of slots 34.
  • Slots 34 can extend completely through inner sleeve 14 and are apertured to have a width somewhat less than the diameter of bearing balls 10.
  • Each curved end of inner member groove 32 is provided with a ramp 36 to permit the balls to enter and leave inner member grooves 32.
  • the straight portions of the apertured slots 34 define the paths of circulation of the balls 10 while they are in their active or load bearing contact position with the shaft 38 and the concave bearing raceway surfaces 25 of the insertable members 23. Substantially frictionless relative movement is thereby achieved between the bearing assembly and shaft 38.
  • Axially extending grooves serve to prevent rotational movement of sleeve 14 within sleeve 12 and with inner member grooves 32 define the straight portion of the track in which the balls 10 are out of contact with the shaft 38 or in their passive position. This also serves to align the axially extending slots 34 ofthe inner sleeve with the axially extending bearing raceway surfaces 25. As can thus be seen in the figures, the balls are in a passive state, i.e., are out of active contact with the shaft 38, where they encounter the end surface 24 on the insertable member 23. This facilitates smooth transition to and from the apertured slot 34.
  • an anti-friction ball bearing assembly in accordance with the present invention which is extremely simple in construction and design and is easy and economic to manufacture and assemble.
  • the assembly procedure could be fully automated to further reduce the overall cost of the bearing.
  • the bearing may be assembled by inserting the insertable member 23 within their respective axially extending channels 22 and then inserting the inner sleeve 14 within the outer sleeve 12 with the balls 10 in place. This latter step may be accomplished by registering the intersecting plane portions of the inner sleeve with the grooves 20.
  • the fastening or snap ring 16 could be fixedly placed within their respective annular grooves 28 to lock the entire anti-friction ball bearing into an operating unit.
  • the insertable members 23 may be inserted in their respective axially extending channels and eventually locking in operational position by the action of the fastening or snap rings 16 fixedly placed within annular grooves 28.
  • Other means of operationally positioning the insertable member 23 within the axially extending channels 22 could also be employed, for example, an interference fit between the insertable member 23 and the walls of the channel 22 could be used to maintain the operational position of the insertable member 23.
  • the various components of the bearing assembly in accordance with the present invention could be manufactured out of a wide range of materials including various types of plastics and metals.
  • the outer sleeve 12 may be manufactured from a hardenable steel such as SAE 5200 steel.
  • the insertable member 23 may be manufactured from a number of appropriate sheet metals. such as sheet stainless steel.
  • the insertable member 23 could have its raceways 25 surfaces and respective recesses 24 machined thereon such as by utilizing high speed grinding machines or the like. Additionally, the raceway surfaces could be treated with a self-lubricating plastic such as polytetrafluoroethylene.
  • An anti-friction ball bearing assembly comprising an outer sleeve and an inner sleeve concentrically fitting within said outer sleeve, said inner sleeve having a central opening for the passage of a shaft therethrough, the inner sleeve having a number of tracks defining paths for the circulation of balls between said sleeves and said shaft during relative movement between said shaft and said bearing assembly, the outer surface of the inner sleeve being polyhedronal in shape, the inner surface of the outer sleeve being provided with a number of guideways, the intersections of the plane portions defining the outer surface of the inner sleeve registering with said guideways, said inner surface of the outer sleeve is further provided with a number of axially extending channels adapted to receive a plurality of insertable members each having a concave raceway surface thereon aligned with said tracks providing a bearing support for said balls while said balls are in their loaded state.
  • each of said insertable members are manufactured from sheet metal and are stamp formed.
  • An anti-friction ball bearing assembly in accordance with claim 1, wherein an annular groove is provided at each end of the inner sleeve at the inner surface thereof, said annular grooves adapted to receive fastening means, said fastening means maintaining the operational position of said insertable members.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Bearings For Parts Moving Linearly (AREA)
US00334707A 1973-02-22 1973-02-22 Anti-friction ball bearing assembly Expired - Lifetime US3844628A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US00334707A US3844628A (en) 1973-02-22 1973-02-22 Anti-friction ball bearing assembly
CA188,935A CA1038434A (en) 1973-02-22 1973-12-27 Anti-friction ball bearing assembly
AU64334/74A AU6433474A (en) 1973-02-22 1974-01-09 Anti-friction ball bearing assembly
NL7400923A NL7400923A (de) 1973-02-22 1974-01-23
DE2403676A DE2403676A1 (de) 1973-02-22 1974-01-25 Laengsfuehrungslager
FR7404687A FR2219329B3 (de) 1973-02-22 1974-02-12
CH197674A CH574570A5 (de) 1973-02-22 1974-02-13
BE140930A BE811053A (fr) 1973-02-22 1974-02-14 Roulement a billes antifriction
AT127874A AT328801B (de) 1973-02-22 1974-02-18 Kugellageranordnung
BR741201A BR7401201D0 (pt) 1973-02-22 1974-02-19 Conjunto mancal esferico anti friccao

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00334707A US3844628A (en) 1973-02-22 1973-02-22 Anti-friction ball bearing assembly

Publications (1)

Publication Number Publication Date
US3844628A true US3844628A (en) 1974-10-29

Family

ID=23308450

Family Applications (1)

Application Number Title Priority Date Filing Date
US00334707A Expired - Lifetime US3844628A (en) 1973-02-22 1973-02-22 Anti-friction ball bearing assembly

Country Status (10)

Country Link
US (1) US3844628A (de)
AT (1) AT328801B (de)
AU (1) AU6433474A (de)
BE (1) BE811053A (de)
BR (1) BR7401201D0 (de)
CA (1) CA1038434A (de)
CH (1) CH574570A5 (de)
DE (1) DE2403676A1 (de)
FR (1) FR2219329B3 (de)
NL (1) NL7400923A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940187A (en) * 1974-07-18 1976-02-24 Minoru Suda Antifriction bearing for sliding members
US3951471A (en) * 1975-05-07 1976-04-20 Caterpillar Tractor Co. Recirculating ball bearing assembly for fork lift mast units
US3975064A (en) * 1972-09-15 1976-08-17 Skf Nova Ab Ball bushing
US4025128A (en) * 1975-11-12 1977-05-24 Ted Geffner Antifriction bearings
US4091712A (en) * 1975-05-14 1978-05-30 Friedrich Deckel Aktiengesellschaft Spindlehead with spindle driving motor
US6126319A (en) * 1995-09-11 2000-10-03 Koyo Seiko Co., Ltd. Linear motion ball bearing and method for forming lubricating film of the linear motion ball bearing
US6328474B1 (en) 1998-10-16 2001-12-11 Koyo Seiko Co., Ltd. Linear guide device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004593B1 (de) * 1978-04-04 1981-10-07 SKF Industrial Trading & Development Co, B.V. Kugelbüchse für Linearbewegungen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084004A (en) * 1960-10-14 1963-04-02 Eagle Picher Co Elastomeric bearing races
US3304133A (en) * 1962-05-24 1967-02-14 Strassberg Maximilien Guiding device
US3330606A (en) * 1964-01-11 1967-07-11 Suda Minoru Antifriction bearing for sliding members
US3512849A (en) * 1968-01-19 1970-05-19 Heinrich Weisel Ball bearing for linear motion
US3540782A (en) * 1968-11-04 1970-11-17 Hans Worm Ball bearing
US3545826A (en) * 1969-05-07 1970-12-08 John B Thomson Compliant and self-alining ball bearing for linear motion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084004A (en) * 1960-10-14 1963-04-02 Eagle Picher Co Elastomeric bearing races
US3304133A (en) * 1962-05-24 1967-02-14 Strassberg Maximilien Guiding device
US3330606A (en) * 1964-01-11 1967-07-11 Suda Minoru Antifriction bearing for sliding members
US3512849A (en) * 1968-01-19 1970-05-19 Heinrich Weisel Ball bearing for linear motion
US3540782A (en) * 1968-11-04 1970-11-17 Hans Worm Ball bearing
US3545826A (en) * 1969-05-07 1970-12-08 John B Thomson Compliant and self-alining ball bearing for linear motion

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975064A (en) * 1972-09-15 1976-08-17 Skf Nova Ab Ball bushing
US3940187A (en) * 1974-07-18 1976-02-24 Minoru Suda Antifriction bearing for sliding members
US3951471A (en) * 1975-05-07 1976-04-20 Caterpillar Tractor Co. Recirculating ball bearing assembly for fork lift mast units
US4091712A (en) * 1975-05-14 1978-05-30 Friedrich Deckel Aktiengesellschaft Spindlehead with spindle driving motor
US4025128A (en) * 1975-11-12 1977-05-24 Ted Geffner Antifriction bearings
US6126319A (en) * 1995-09-11 2000-10-03 Koyo Seiko Co., Ltd. Linear motion ball bearing and method for forming lubricating film of the linear motion ball bearing
US6240641B1 (en) * 1995-09-11 2001-06-05 Koyo Seiko Co., Ltd. Method of forming a lubricating film on a linear motion ball bearing
US6328474B1 (en) 1998-10-16 2001-12-11 Koyo Seiko Co., Ltd. Linear guide device

Also Published As

Publication number Publication date
BE811053A (fr) 1974-05-29
CH574570A5 (de) 1976-04-15
AT328801B (de) 1976-04-12
ATA127874A (de) 1975-06-15
FR2219329A1 (de) 1976-11-26
FR2219329B3 (de) 1976-11-26
AU6433474A (en) 1975-07-10
BR7401201D0 (pt) 1974-11-19
DE2403676A1 (de) 1974-09-05
NL7400923A (de) 1974-08-26
CA1038434A (en) 1978-09-12

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Legal Events

Date Code Title Description
AS Assignment

Owner name: INCOM-HEIM CORPORATION

Free format text: MERGER;ASSIGNOR:HEIM UNIVERSAL CORPORATION, THE;REEL/FRAME:003869/0848

Effective date: 19810327

Owner name: INCOM INTERNATIONAL, INC.

Free format text: MERGER;ASSIGNOR:INCOM-HEIM CORPORATION;REEL/FRAME:003869/0853

Effective date: 19810327

AS Assignment

Owner name: IMO DELAVAL INC., A CORP. OF DE, DELAWARE

Free format text: MERGER;ASSIGNOR:IMO CORPORATION;REEL/FRAME:005270/0965

Effective date: 19890419

AS Assignment

Owner name: NOOK INDUSTRIES, INC.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:IMO INDUSTRIES, INC. A CORPORATION OF DELAWARE;REEL/FRAME:005775/0228

Effective date: 19910522